Cannot take Child and Other Dependent Tax Credit

When I try to take the Child and Other Dependent Tax Credit TurboTax Desktop tells me I am not entitled to the credit. I have taken this credit for years and not had a problem. I reviewed a lot of other users posts with the same issue and have not found a solution. My daughter is a disabled 35 year old who lives with me all year. She has only SSI income and I pay more than half her support.

 

I have already tried removing her as a dependent. Saving the form and then re-entering her information. When I enter the dependent details in My Personal Info it tells me that I qualify for a credit. But when I go to the Deductions and Credits and try to update the credit it pops up with a message that "It turns out you don't qualify for these credits".

 

I've tried everything I can think of and nothing works. Is this a BUG in the TurboTax Deluxe desktop version?

 

Thanks,

Alan